We tried cryotherapy — the super-cold treatment LeBron James swears by

World-class athletes including LeBron James and Cristiano Ronaldo use cryotherapy to help their muscles recover and to heighten their alertness. Self-help guru Tony Robbins also told us he used the treatment on a daily basis. We decided to try it for ourselves.

We went to KryoLife, the only cryotherapy treatment center in New York City that is available to the public. Each three-minute treatment costs $90, and it exposes the subject's entire body to temperatures as low as minus 264 degrees Fahrenheit.